展開全部

function RandDisplayJiong

axis off;

set(gcf,'menubar','none','toolbar','none');

for k=1:50

h=text(rand,rand,...

['\fontsize{',num2str(unifrnd(20,50)),'}\fontname{隸書}囧'],...

'color',rand(1,3),'Rotation',360*rand);

pause(0.2);

end

function T=cat_in_holl(n)

T=zeros(1,n);

for k=1:n

c=unidrnd(3,1);

while c~=1

if c==2

T(k)=T(k)+4;

else

T(k)=T(k)+6;

end

c=unidrnd(3,1);

end

T(k)=T(k)+2;

end

》z=cat_in_holl(10000);

function example2_3_6slow

A=unidrnd(100,100,7);

B=zeros(100,3);

tic;

for m=1:100

a=A(m,:);

b=[4,6,8];

for ii=1:3

dd=a(a==b(ii));

if isempty(dd)==0

b(ii)=0;

end

end

B(m,:)=b;

end

toc

end

function example2_3_6fast2

clear

A=unidrnd(100,1000000,7);

B=repmat([4,6,8],1000000,1);

tic;

C=[any(A==4,2) any(A==6,2) any(A==8,2)];

B(C)=0;B

toc

function triangle_table

fig = figure('defaultuicontrolunits','normalized','name','triangle_table',...

'numbertitle','off','menubar','none');

ah = axes('Pos',[.1 .2 .75 .75],'Visible','off');

slider_h = uicontrol('style','slider','units','normalized','pos',...

[0.1,0.05,0.75,0.05],'sliderstep',[1/6,0.05],'callback',@change_color);

hold on

for k = 0:6

plot(0:6-k,(6-k)*ones(1,(7-k)),'k');

plot(k*ones(1,(7-k)),k:6,'k');

end

plot([0,6],[0,6],'k');

hold off;

for x = 1:5

for y = 1:x

text(y-0.5,x+0.5,num2str(x),'color','k','tag','數(shù)字');

end

end

for k = 0:5

text(k+0.1,k+0.5,[num2str(k),'.5'],'tag','數(shù)字');

end

function change_color(hObject,eventdata)

v = round(6*get(slider_h,'value'));

num_h = findobj('tag','數(shù)字');

num_pos = get(num_h,'pos');

red_num_logic = cellfun(@(x) (x(1)<=v&&x(2)<=v),num_pos);

set(num_h(red_num_logic),'color','r');

set(num_h(~red_num_logic),'color','k');

end

end

function [m,n,TT]=plot3dnmT(N,L)

C=zeros(N,1);

m=linspace(0,2,L);

[m,n]=meshgrid(m,m);

TT=zeros(size(n));

for ii=1:L

for jj=1:L

TT(ii,jj)=calcT(m(ii,jj),n(ii,jj));

end

end

function Tmn=calcT(mm,nn)

for N1=1;N

C(N1)=(mm^62616964757a686964616fe58685e5aeb931333337373630N1/gamma(N1+1))*sum(nn.^(0:N1-1)./gamma(1:N1));

Tmn=1.0-exp(-mm-nn)*sum(C);

end

end

mesh(n,m,TT);

end

》[m,n,TT]=plot3dnmT(30,30);

function [mx,minf]=randwalk(f,x,lamda,epsilon,N)

f1=f(x(1),x(2));

while(lamda>=epsilon)

k=1;

while(k<=N)

u=unifrnd(-1,1,1,2);

x1=x+lamda*(u/norm(u));

f11=f(x1(1),x1(2));

if f11

f1=f11;

x=x1;

k=1;

else

k+k+1;

end

end

lamda=lamda/2;

end

mx=x1;

minf=f1;

>>f=@(x)-sin(sqrt((x(1)-50)^2+(x(2)-50)^2)+exp(1))/(sqrt((x(1)-50)^2+(x(20)-50)^2)+exp(1))-1;

>> f2=@(x,y)-sin(sqrt((x-50).^2+(y-50).^2)+exp(1))./(sqrt((x-50).^2+(y-50).^2)+exp(1))-1;

>> [x,fval]=fminsearch(f,[49,49],optimset('TolX',1e-8))

function [mx,minf]=randwalknew(f,x,lamda,epsilon,N,n)

F=zeros(n,1);

X=zeros(n,2);

f1=f(x(1),x(2));

while(lamda>=epsilon)

k=1;

while(k<=N)

u=unifrnd(-1,1,n,2);

for ii=1:n

X(ii,:)=x+lamda*(u(ii,:)/norm(u(ii,:)));

F(ii)=f(X(ii,1),X(ii,2));

end

[f11,kk]=min(F);

if f11

f1=f11;

x=X(kk,:);

k=1;

else

k=k+1;

end

end

lamda=lamda/2;

end

mx=X(kk,:);

minf=f1;

》f2=@(x,y)-sin(sqrt((x-50).^2+(y-50).^2)+exp(1))./(sqrt((x-50).^2+(y-50).^2)+exp(1))-1;

》 [mx,minf]=randwalknew(f2,[0,0],10,0.00001,1000,10)

function DuckLakeSegmentation

[filename,pathname,flag]=uigetfile('*.jpg','請(qǐng)導(dǎo)入圖像文件');

Duck=imread([pathname,filename]);

LakeTrainData=[52 74 87;76 117 150;19 48 62;35 64 82;46 58 36;...

50 57 23;110 127 135;156 173 189;246 242 232;...

166 174 151];

DuckTrainData=[211 192 107;202 193 164;32 25 0;213 201 151;115 75 16;...

101 70 0;169 131 22;150 133 87];

group=[zeros(size(LakeTrainData,1),1);ones(size(DuckTrainData,1),1)];

LakeDuckSVM=svmtrain([LakeTrainData;DuckTrainData],group,...

'Kernel_Function','polynomial','Polyorder',2);

[m,n,k]=size(Duck);

Duck1=double(reshape(Duck,m*n,k));

IndDuck=svmclassify(LakeDuckSVM,Duck1);

IndLake=~IndDuck;

result=reshape([IndLake,IndLake,IndLake],[m,n,k]);

Duck2=Duck;

Duck2(result)=0;

figure

imshow(Duck2)

function example12_2_1

TimerA=timer('timerfcn',@TimerFun,'StartDelay',unidrnd(5000,1)/1000,...

'executionmode','fixedrate');

set(TimerA,'userdata',0);

num=5;

start(TimerA)

function TimerFun(obj,event)

set(TimerA,'userdata',get(TimerA,'userdata')+1);

disp(['間隔時(shí)間為',num2str(get(TimerA,'startDelay')),'S!']);

disp('Hello World!');

stop(TimerA);

set(TimerA,'StartDelay',unidrnd(5000,1)/1000);

start(TimerA);

while get(TimerA,'userdata')==num

stop(TimerA)

return;

end

end

end

已贊過

已踩過<

你對(duì)這個(gè)回答的評(píng)價(jià)是？

評(píng)論

收起

總結(jié)

以上是生活随笔為你收集整理的matlab3dimshow_matlab利用MATLAB嵌套函数表示3D作图的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。